Canonical event

Claude 4 releases and Claude Code reaches GA

Anthropic releases Opus 4 and Sonnet 4 and makes Claude Code generally available.

Artifacts

Claude 4 releases and Claude Code reaches GA
documented_by · official_announcement

Signals

Anthropic releases Opus 4 and Sonnet 4 and makes Claude Code generally available. Vendor evaluations and long-running demonstrations do not establish general unattended autonomy.
supported inference

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